Pipe joint



' Oct 28, 1947.

J. P. MORAN ET AL PIPEJ'OINT File Aug- 25, 1944 Invemntor @dat may MZWS By and ot.2s,1947. J.P.MORAN my 2,429,765

PIPE JOINT Y Filed Aug'. 25, 1944 3 Sheets-Sheet 2 I uveutor;

WWW/ry Me Oct 2&8, 1947.V J. P. MORAN T AL f 2,429,765

PIPE JOINT Filed Aug. 425, 1944 3 Sheets-Sheet 5 I n venters Patented Oct. 28, 1947 UNITED STATES PATENT OFFICE PIPE JOINT James P. Moran, Washington, D. C., and Benjamin F. Slinglu", Cheverly, Md.

Application August 25, 1944, Serial No. 551,232

4 Claims. l

The present invention appertains to a specially constructed adapter between a fluid pressure and flow measuring instrument and a metal joint connecting two cable lengths in which are imbedded one or more solid-wall, metal tubes for fluid gas or oil.

The main object of this invention is now to obviate the disadvantages found in joints of this type, in which it is necessary to have the tube ends exposed outside the joint for taking measurements of pressure and flow in such cables. By means of a special adapter or test nipple tting suitable openings of said casing to which the instruments such as manometer, flow indicator or Bourdon gage can be attached, direct measurements can now be taken without disturbing the metal tubes at all.

In the accompanying drawings one embodiment of the invention is illustrated, wherein like numerals represent the same parts in the different views.

Figure 1 shows a connecting joint or casing between two cable lengths in elevation and part section;

Figure 2 a fragmentary section of said joint with an ordinary closing plug for normal running;

Figure 3 a similar section with the adapter also in section in position for taking the test by manometer;

Figure 4 is a side elevation of the test adapter;

Figure 5 a similar view of the adapter nipple proper;

Figure 6 a similar View of the permanent base member of the adapter;

Figure 7 a top plan View of Figure 6;

Figure 8 a nut for the base portion and Figure 9 and 10 top plan View and section respectively of closing cap and stop for manual operation.

In the drawings numerals I5 and I6 represent two ends of multiple cables to be joined together in the casing I1. The cables are respectively enclosed by a metal sheath I9 and I9, secured by wipedsolder in the tapered ends of the casing I1. The conductors are spliced together in the middle of the casing at I8 preferably wrapped with insulation. The casing I'I is preferably made of two pieces of spun copper or lead, joined together tightly, as at 20, forming a surrounding belt. Imbedded between the cables I5, to the left of Figure 1 is shown a copper tube 2| having a solid imperforate wall which terminates within the test plug 22 provided on top of the casing I'I. A similar copper tube 23 is imbedded in the opposite cables I6, but this tube terminates in the open chamber 24 in the casing I'I. These tubes 2I and 23, of which there may be several, act as fluid conduits, gas or oil or other suitable liquid.

Beside the test plug at 22, there are provided two other plugs, one at 25 on top of the casing to provide for spot measurement of pressure, and the other 26 at the bottom of casing I'l serving as means for draining 01T excess compound of the system.

Referringv particularly to Figures 3, 4, 5, G, 7 and 8, showing the testing adapter, reference numeral Eil represent the base member of the adapter screwed into a threaded socket 3| on' 'top of the casing. Into the threaded underside of the base 3e one threaded arm oi an elbow 32 is inserted and in the bore of the other arm of the elbow 32 is sealed as by solder the end of 'the iiuid conduit or copper tube 2|. The base 'portion 3? extends upwardly with its threaded shank 33, adapted to receive a retaining nut 34, this shank being provided with an outwardly open conical chamber 35, between which and the central opening 3S of 'the elbow is furnished the base member 3i?, an axial bore 3l. In a semi-circle around the axial bore is provided a number of narrow channels or perorations 38, seven being shown, see Figure '2, which :form permanently open connections between said space 35 and the interior chamber 2:1 of the casing il. f

The adapter proper or test nipple repre-l sented by numeral 39 consisting of a substantially cylindrical body with an axial bere, d, in tended to form a continuation ofthe bore 3i in the base-member 39 and terminating at its upper end with a threaded socket il for receiving a testing instrument. About midway up on its cylindrical body, the adapter 39 is 'provided with an annular flange 62 between which and the 'top surface of the threaded shank 33 is placed a leather or rubber gasket 3, and :in a .recess 44 formed at 'the bottom of the test nipple 39 is placed another similar gasket d5, 'to prevent leakage of iiuid passing :from the copper tube 2l into the bores 3l and 453. Around the lower ond of 'the nipple 39 is prcvided an annular groove |35 and nally a narrow channel fil shown running lengthways in the test nipple body 3S to form a continuation to the perforations 38 in the base member 3d. This channel opens into the bore of the outside threaded thimble 8 extending radially from near the socket 4I, but without connecting therewith.

' As thus assembled the device is ready for operation by attaching the end conduits of a testing instrument 55, one to each of the fluid outlets at 4i and 48, thus causing a continuous flow of iiuid to be tested, from one to the other oi the imperforate tubes 2i and 23, Without having to draw their ends out of the casing Il as is necessary with present day appliances.

For normal running and continuous ow of uid thru all imperiorate metal tubes 2| .and 23 in all sections of the cable line, the arrangement as shown in Figures 2, 9 and 10 is utilized. In this case the base member 35 remains inserted in the casing socket 3|, but in place of parts 34,239, 43 and 45, which have now been removed from plug 2E in the casing Il, a tapered stopperliis inserted in the conical space 35 ofthe basemember 30 in order to close thek iiuidiiovvzfromtube 2l and the bore 32, which flow is noW instead directed down thru the perfo-rations 38, see arrow X Figure l0, back into the chamber 24 in the metal casi-ng il to continue thru tube 23' and all the'others in line. This stopperQ Vissecured :in closed-position byy a clamping nut .50andisprovided with van exterior .head Vi 'The' plugs :at '25 4and 26. ontheV casing lare preferably` of .similar .construction :as'the one just described.

This'rdevice asalready stated is adapted for testing ovv of gas, oil or other fluid as well as pressure and other internal conditions of electric multiple .cable lines. For this reason, sundry measuring instruments, such Aas .a directional ilovJ indicator, a manometer, a pressure gage or the like, denoted by numeral 55 in position in Figure lmay be used attached to one or both of the sockets 4l and i8 on the nipple 33.

It is to be understood that the invention as here disclosed is not limited to the details here described but that the same may be varied Widely Without departing from thespirit of the invention as dened by the subjoined claims.

We claim:

l. Anadapter for measuring fluid pressure and floW in a fluid conduit provided With a casing having a chamber for saiduid; said adapter comprising a `base membersecured `in said casing and formed with a iiuid space, supply inlet means communicating With said chamber, passage means in said base member providing intercommunication between said chamber and space, a test nipple inserted in said space and means for holding the nipple seated in said space, a test thimble extending from `said test nipple and a -by-pass formed in the nipple between said space and the test thimble, a test socket'in said nipple and abore from said test socket thru said nipple and said base member, and a second supply inlet means from said conduit connecting with said bore voi the base member ;.whereby, upon a suitable testing instrument being applied with one or" its terminals to said test thimble and its other terminal to said test socket, the differential in pressure between the fluid in said supply conduits Will 'be measured.

2. 'An adapter for connecting the terminals of a pressure and flow testing instrument in fluid communication With the ends of the impervious fluid conduits in a fluid filled cable installation comprising a base member having a Well formed therein and a plurality of passages extending therethrough., the inner ends of said passages terminating in said Well and the outer ends of saidfpassages being adapted to be placed-in fluid communication with the ends of said respective fluid conduits, a removable nipple member instrument.

'3. An adapter for connecting the terminals of a pressure and flow testing instrument in fluid communication-'with the ends of the impervious 'ifluid lconduits in a fluid lled cable installation vcomprising a base'member, a Well formed in the upper portion of said base member, an axially aligned bore extending through said base member, fluid passages extending through said base member ,positioned between the outer portion thereof fand saifd'bora the `inner ends of said axially laligned bore and said fluid passages terminating iinrfsaid yvvell section, means `for Ipermanently securing the end of one ofsaidrimpervious fluid conduits to the outer end ofsaid axialbore, -a'nipple member adapted to v'have one f end .thereof inserted in -said well portion of `:said'base mem-ber, .an laxially aligned bore extending through said nipple member the :inneriend thereof being in alignment with the inner endY of-said boreY in said base member when said nipple 'member is `inserted therein, means .for removably securing said nipple member in Jsaid base member for maintaining'said 'boresinia'lignment, a `uid `passage extending longitudinally of said nipple member positioned llbetvveenfsaid axially extending bore in said nipple member and the outer Vvsurface thereof theends 'of said il-ui'd .passage vterminating before reaching the ends of said nipple member, a radiallyexteridingpassage in the lower end of saidnip'plemembery connecting with -the lower end' oiusaid-longitudinally extending passage to place the'linner end .thereof in fluid communication With said vvell porti-on` 'of' said :biasemernber'when .said nipple is inserted therein, and a second radially extendingpassage connecting v/ithithe otherfend of said 4longitudin'z'illy yextending passage, land means provided for the outer end of said'second radially :extending-passage 'and the outeren'd of said axially extending `bore insaid'nipple member for securing the respective terminals oi said-testing I instrument thereto to provide separate "fluid passages from the respective endsoffsaid impervious conduits to .the 'respective testinginstrument terminals.

f4. Anadapter 'for connectingthelterminals'of apressure and ovv testing .instrumentlin flu-id communication with the ends of the impervious fluid iconduitsin a fluid .lled `cable installation comprising .a .base member having a fluid space formed inthe upper yportionv thereon-a plurality offpassages extending through the ilower portion of said base membenrthe inner ends of saidpassagesiterminating in said uidspaceand the outer endsiof said passages being adapted-ato be placed inffluid vcommunication with the ends ofIsa-i'd respective iiuid conduits, va removable nipple member t'having :an innerendrand an outer end, said innerlendfloeing adapted to 'be' inserted into said 'fluid spagcefand removably 'secured therein, saidn'ipple 9member-h-avinga plurality of fluid passages 'extending therethrough, the -ferrds of said passages'atithe innerend of said'nipplernem- Y ber being so formed that one of the passages in said nipple member Will always be in fluid communication with the same passage in said base member and the other of said passages in said nipple member will always be in fluid communication with the other of said passages in said base member regardless of how said nipple member is turned When the inner end of said nipple member is secured in said base member, so as to pro-Vide a plurality of separate fluid passages through said adapter, means for removably securing said nipple member to said base member and means provided at the outer ends of said fluid passages passing through said nipple member for attaching thereto the respective ends of the terminals of said testing instrument.

JAMES P. MORAN. BENJAMIN F. SLINGLUFF.

s REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 324,412 Patterson Aug. 28, 1885 372,491 Suanders Nov. 1, 1887 1,133,714 Elder Mar. 30, 1915 1,178,999 Fleming Apr. 11, 1916 1,478,383 Dodge Dec. 25, 1923 2,261,742 Matsumoto Nov. 4, 1941 2,277,460 Shanklin Mar. 24, 1942 2,355,513 Cox Aug. 8, 1944 

